There’s a lot of crime data. For almost every reported crime, there’s a paper or digital record of it somewhere, which means hundreds of thousands of data points – number of thefts, break-ins, assaults, and homicides as well as where and when the incidents occurred.

With all this data it’s no surprise that the NYPD (and more recently, the LAPD) took a liking to COMPSTAT, an accountability management system driven by data.

While a lot of this crime data is kept confidential to respect people’s privacy, there’s still plenty of publicly available records. Here we take a look at twenty visualization examples that explore this data.